<template>
    <div id="app">
        <div id="cover">12</div>
        <Header></Header>
        <Todo></Todo>
        <Footer></Footer>
    </div>
</template>

<script>
  import Header from './todo/header.vue'
  import Footer from './todo/footer.jsx'
  import Todo from './todo/todo.vue'
  export default {
    components: {
      Header,
      Footer,
        Todo,
    }
  }
</script>

<style lang="stylus" scoped>
    #app {
        position absolute
        left 0
        right 0
        top 0
        bottom 0
    }

    #cover {
        position absolute
        left 0
        right 0
        top 0
        bottom 0
        background-color #555
        opacity 0.5
        z-index -1
    }
</style>
